TIL It only took humans 11 years to start a World War following the invention of the airplane.

https://sandiegoairandspace.org/exhibits/online-exhibit-page/world-war-i

#til #todayilearned

https://www.reddit.com/r/todayilearned/comments/1hpolwg/til_it_only_took_humans_11_years_to_start_a_world/